tomcarey88

i go to my dads shop ...an i figured i would use his scanner,an it said missfire on # 2 ,so i change plugs...still then check fuel injecter senser thin an it wuz fine.... checked wire an it wuz fine...then compression test an 300 for compression.....so they thimk it might be the valve spring....so im going to check to see if it is ...hopefully thats all it is

tomcarey88

ok does any one have any idea wht the norm compression is

UserID6095

I dont know what the normal is but mine was 150psi across the board and thats with 180k miles on her. I checked mine about a week ago.

rich

120-150 psi ajioning clyinders should be withing 20% of each other.

warthog

300 is high and just wandering, maybe i am drawing a blank but where are the injector sensors?

superj

maybe thats o2 sensor?

tomcarey88

maybe the gauge wuz wacked ...a harbor freight one with snap on logo lol .....i thought it wuz fine ....but i cracked open the valve cover an holy **** there wuz alot of gunk ....so after 45 min an aa shop vac i cleaned it up somewht ....the springs were fine everything seemed fine ...so i closed it up an reset the check engine light ,an just waiting to see if it reapears

tomcarey88

i already changed those a fiew months ago,both of the o2 sensors

tomcarey88

ok update.....i opened up the valve cover to check out the springs....an holy **** there wuz alot of gunk....so i clean all the gunk of the valves an the problem seems to have gone away...mpg is back to were it should be an the check engine light has stayed off

warthog

Did you take any pics during this process? I might try this in the next couple weeks

tomcarey88

i should have but i didnt feel like washing my hands every 5 seconds to take a pic....it wuznt taht hard just a pia ...im going to do it to my other one here soon

tomcarey88

after another 100 miles still no check engine light but gas mpg is down to 15 ish

warthog

I wish mine was at 15ish, I think i am around the 12 mark with my misfire problem